Technically gen1 and gen2 have different rolling circumferences so my advice would be to check part numbers 1st
This very true, but space savers have a strict limitation on their use anyway, so a slight difference in profile, is not of an major concern to me at least.
I see space savers as an absolute very short term ( get you to the nearest tyre shop ) solution.
A full sized spare is a much better option, but I don’t like the idea of losing the lower level position of the boot cover, just in case I get a puncture.
The space saver on the other hand, offers no reduction in boot space and will “Do the job” for Ithe very minimal use I hopefully ? tend to give it.
It sat ( getting a free ride ) in the boot of Gen 1 ZS EV for over two years and was never used in anger.
Which is a good thing, don’t get me wrong !.
I see it purely a device for avoiding a long wait from our friends from the A.A.
Bang on the space saver and then promptly ( but slowly ) make my way to the nearest tyre shop.
Spacer saver spare - Yes !.
But prefer another more apt title for this type of set up - Emergency spare.
Only recently I spotted a Audi A3 being driven in the fast lane of the M56 with a space saver fitted !!!!’.